7
4.
Replacing or Converting to a Nylon Brush Drum.
The procedure for replacing or converting an inner drum is similar to the procedure for removing
the drum for purposes of inspection and cleaning (Sec. I, D, Step 11; page 4). In addition to these
directions, the bearings and coupler must be transferred to the new drum shaft.
a.
Remove Quick Release pins from pillow block bearings.
b.
Vertically align coupler.
c.
Remove drum from tank by lifting straight up.
d.
Remove coupler and bearings from old drum shaft. Take care to retain keys from
keyways in coupler sections.
e.
Place the bearings on shaft of the new brush drum.
f.
Lower drum/bearing unit into place.
g.
Visually align drum in the center of the tank. Tighten set screws on bearings.
h.
Make sure than the drive coupler halves are sung to each other and that the key is in
place in the keyway.
i.
Tighten set screw on coupler.
j.
Recheck drum alignment. (Sec. I C, 1; page 2)
B.
Replacing Rubber Liners
1.
Relining the Inner Drum
The 50G Inner Drum Liner Replacement Kit consists of two pieces of rubber (one textured and
one smooth) and all necessary mounting hardware.
a.
Remove inner drum as described in Sec I, D, Step 11; page 4..
b.
Remove old liner.
1)
Remove sheet metal screws from inner drum.
2)
Remove and discard old rubber liner and shim.
3)
Clean residue of old liner from drum surface.
c.
Installing new liner
d.
Wrap the trimmed shim rubber around the drum and secure with tape. Three wraps around
the circumference of the drum will generally be enough.
e.
Wrap, mark, cut, and tape the long textured liner to the drum in the same manner as
the shim.
f.
Use a 7/64” or 1/8” drill bit. Drill 9 holes, each approximately 1⁄2” apart, along one side
of the liner seam. Make sure than the holes are in the recesses between the ribs of
the rubber. Then drill 9 matching holes on the opposite side of the seam.
g.
Drive one of the #10 sheet metal screws (Phillips head) into each of the 18 holes,
beginning from the edges and working toward the center. Make sure that the heads of the
screws are seated well beneath the surface of the rubber ribs.
h.
Turn the drum around to the halfway point, exactly opposite from the liner seam. Drill
two more holes and install two more screws, each about 1 inch from the edge.
i.
Repeat
this procedure seven or more times, placing pairs of screws at various points
around the drum. There will be 35 total screws holding the shim and liner in place
around the drum.
j.
Remove the tape. The relining of the Inner Drum is now complete.
k.
Trim the width of liner.
2.
Relining White Molded Outer Drum Guides - Bottom Half
The Replacement Kit for the 50G Superwash Outer Drum contains 4 strips of textured rubber
(of equal length) that are mounted in the bottom half, and the sheet metal screws necessary for
mounting. The 50G Jr. has 3 similar strips.
Note that the new rubber liner strips are shipped oversized and must be trimmed to match the
length and shape of the old strips, and that new mounting holes must be drilled to match those
in the old strips.
